Winding spool



Sept. 29, 1925.

G. R. ZECHER' WINDING SPOOL Filed March 10, 1924 wa /v70:

ATTUP/VEYE Patented Sept. 29, 1925.

UNITED STATES PATENT OFFICE.

GRANVILLE R. ZECHER, OF MIDDLETOWN, OHIO, ASSIGNOR TO THE ENTERPRISE MA- CHINE COMPANY, OF MIDDLETOWN, OHIO, A CORPORATION OF OHIO.

WINDING SPOOL.

To all whom, it may concern:

Be it known that I, GRANVILLE R. ZEOHER, a citizen of the United States, and a resident of Middletown, in the county of Butler and State of Ohio, have invented certain new and useful Winding Spools, of which the following is a full, clear, and exact descrip tion, reference being had to the accompanying drawing, forming part of this specifica-.

tion.

Heretofore in the manufacture of paper webbing, it has been customary to wind the web into a roll using a spindle or core, usually of wood, upon which to wind, and these cores frequently are 8, 10 or 12 inches in diameter, and with the growing scarcity of lumber, are rapidly enhancing in price, and in addition the weight of the cores adds materially to the weight of the roll.

In order to maintain the proper shape for the roll, it is customary to retain the core in the roll for shipment. The weight adds materially to the freight charges, and to the cost of handling frequently as high as 15% or more, while the storage space for the cores, both for the manufacturer and the user, is a matter of considerable importance and additional expense.

It is the object of my invention, therefore to avoid these expenses by the substitution for the ordinary core of wood or other material, a spool which can be expanded and contracted and held in the desired condition for winding the paper from the paper machine, the spool to be then contracted and removed and the roll shipped with a plug in the ends to hold it in shape, and ready to be mounted on a similar spool by the user for unwinding.

Among other improvements, aside from the primary one above indicated, is the provision of a positive action for both expanding and contracting of the drum, protection of the operating mechanism by means of the periphery of the drum, provision of an undistorted circular cross section to the active faces of the drum member when same is expanded, to give a perfect roll action, and other features to be later indicated.

I accomplish my object by that certain construction and arrangement of parts to be hereinafter more specifically pointed out and claimed.

In the drawing:

Figure 1 is a perspective view of the novel device.

Figure 2 is a perspective view of the internal element of the drum, from which the expanding and contract action is controlled.

7 Figure 3 is a perspective view of the cam element.

Figure 4 is a perspective view of the shoes on which the surface plates of the drum are secured.

The surface of the spool is made up of plates 1, which are curved to the arc of a circle which is on the circumference of the spool when completely expanded. The result is that when the plates 1 are in extended position, their surfaces lie entirely within the circumference of a perfect cylinder.

The plates are mounted on shoes 2, by means of suitable screws 3, or other desired means, and the ends of the plates extend beyond the shoes, thereby providing a protection or guard about the adjusting mechanlsm.

The shoes have like peripheries to the plate portions 1, and a set of shoes is mounted at each end of the drum. There are radial grooves or channels 4, at the inner faces of the shoes, and studs 5 projecting from the outer faces. The grooves hold the shoes on the guiding arms, and the studs are operated on by a cam to move the shoes in and out along the guiding arms.

The guiding arm feature is provided by means of a spider having arms 6, located at each end of the drum, said spiders being connected by a shaft 7, and having square holes 8 therein to engage over a squared shaft (not shown) which forms part of the winding machine, and is revolved to wind up the paper on the spool. Of course, instead of a square shaft, a round shaft splined to the spiders may be used.

The grooves in the shoes fit over the arms of the spider, there being four arms and four shoes in the particular embodiment of the invention selected for illustration.

The shaft 7 has a gear 9 on each end thereof lying outside of the shoes, and the hubs of the spiders are formed with journal portions 10 of circular shape, on which are mounted at each end of the machine the cam rings 11. The cam rings seat on the portions 10, and have small racks 12 which lie in mesh with the gears on the shaft 7. The rings also have cam grooves 13 therein through which the studs 5 on the shoes project.

Thus when the spiders, shoes and plates are assembled on the drive shaft of the machine, the hubs of the spiders carry the shoes and spool plates, and revolve them.

around, driving through the arm and groove engagement with the shoes, while the shoes are free to slide in and out from the mounting shaft, as controlled by the revolution of the shaft 7.

The operator thus places a key over the end H of the shaft and turns it, with the result of the gears on shaft 7 revolving the cam rings, and the cam grooves in the rings camming the studs on the shoes in and out from the mounting shaft center.

Thus the circumference of the spool can be altered by positively feeding the plates, forming the surface thereof, toward and away from the mounting shaft. The plates overhang the feeding mechanism and protect it from both the paper and the operator.

WVhen it is desired to form a roll of paper, the spool is expanded, and paper started upon it, and the mounting shaft revolved. This will wind up the paper to a roll of thedesired thickness, whereupon the spool will be contracted, and the roll of paper shifted off, or else the spool removed from the mounting shaft, and then contracted and the paper removed, dependent upon the mode of operationof the rewind machine.

In order to lock the spool for the diameter desired, I provide a locking dog 18, pivotally mounted on the spider disk 10 and arranged to be thrown into engagement with the gear 9 to hold the spool plates in set position.

It should be noted that I have shown and described but one modification of my invention, for the purpose of explaining the principles thereof to others skilled in the art, and not to define thelimits in details, which may be used to accomplish the inventive features of the device, which features I will cover in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A spool for winding a linear member such as a web of paper, comprising surface plates forming a cylindrical shape, shoes on which said plates are mounted, a spindle with spiders with grooves on faces of the spiders slidably retaining the shoes, said spiders provided with hubs, collars with eccentric slots in the collars rotatably mounted on hubs, studs on the shoes extended within the slots and slidably retained therein and segmentary rack teeth on the collars adapted to engage a gear on a shaft extending through the spool.

2. A spool for winding a linear member such as a web of paper, comprising surface plates forming a cylindrical shape, shoes on which said plates are mounted, a spindle with spiders with grooves on faces of the spiders slidably retaining the shoes, said spiders provided with hubs, collars with eccentric slots in the collars rotatably mounted on hubs, studs on the shoes extended within the slots and slidably retained therein and segmentary rack teeth on the collars adapted to engage a gear on a shaft extending through the spool, and a locking pawl adapted to engage the gear on the shaft.

GRANVILLE R. ZECHER. 

